Axis2C内存泄漏？

Question

我和Axis2C一起工作。为了测试这个框架，我用一个简单的web服务客户端做了一些测试。

我使用Apache提供的一些示例和文档编写了客户端。客户端运行良好，我决定使用valgrind对其进行测试，以确保内存管理是正确的。

我使用了示例和文档中提到的函数来释放内存(在本例中)：

// to free the requst struct.
 adb_EncryptRequest_free(request, env);

 // to free the stub.
 axis2_stub_free(stub, env);

 // to free the environment.
 axutil_env_free((axutil_env_t*) env);

我在代码中没有任何“狂野”的new或malloc。

但是，valgrind报告了以下内容：

LEAK SUMMARY:
==2287==    definitely lost: 56 bytes in 3 blocks
==2287==    indirectly lost: 156 bytes in 5 blocks
==2287==      possibly lost: 0 bytes in 0 blocks
==2287==    still reachable: 20 bytes in 1 blocks
==2287==         suppressed: 0 bytes in 0 blocks

我使用--leak check=full重新运行了Valgind，但据我所知，内存问题位于axis2c *.so文件中。

HEAP SUMMARY:
==2292==     in use at exit: 232 bytes in 9 blocks
==2292==   total heap usage: 13,180 allocs, 13,171 frees, 760,422 bytes allocated
==2292== 
==2292== 68 (16 direct, 52 indirect) bytes in 1 blocks are definitely lost in loss record 7 of 9
==2292==    at 0x400677E: malloc (vg_replace_malloc.c:195)
==2292==    by 0x40C2032: axutil_allocator_malloc_impl (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x40C5C07: axutil_string_create (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x804E024: axis2_stub_start_op_PoCPCIServiceService_GetEncryptedData (axis2_stub_PoCPCIServiceService.c:493)
==2292==    by 0x804E759: main (main.c:59)
==2292== 
==2292== 72 (20 direct, 52 indirect) bytes in 1 blocks are definitely lost in loss record 8 of 9
==2292==    at 0x400677E: malloc (vg_replace_malloc.c:195)
==2292==    by 0x40C2032: axutil_allocator_malloc_impl (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x40C74F5: axutil_qname_create (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x804D515: axis2_stub_populate_services_for_PoCPCIServiceService (axis2_stub_PoCPCIServiceService.c:91)
==2292==    by 0x804D395: axis2_stub_create_PoCPCIServiceService (axis2_stub_PoCPCIServiceService.c:48)
==2292==    by 0x804E6ED: main (main.c:46)
==2292== 
==2292== 72 (20 direct, 52 indirect) bytes in 1 blocks are definitely lost in loss record 9 of 9
==2292==    at 0x400677E: malloc (vg_replace_malloc.c:195)
==2292==    by 0x40C2032: axutil_allocator_malloc_impl (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x40C74F5: axutil_qname_create (in /home/EMBT/Downloads/axis2c-bin-1.6.0-linux/lib/libaxutil.so.0.6.0)
==2292==    by 0x804D64F: axis2_stub_populate_services_for_PoCPCIServiceService (axis2_stub_PoCPCIServiceService.c:111)
==2292==    by 0x804D395: axis2_stub_create_PoCPCIServiceService (axis2_stub_PoCPCIServiceService.c:48)
==2292==    by 0x804E6ED: main (main.c:46)

如果我是对的，有没有办法解决这个问题？

谢谢你的帮助。

致以问候。

Answer 1

没有代码，只是猜测而已。我使用的是axis2c (来自svn的1.7.x)，没有注意到任何泄漏(用vc中的visual leak detector检查过)。

我只释放了服务客户端和环境。

 axis2_svc_client_free(svc, env);
 axutil_env_free(env);

根据header注释，您使用"axis2_svc_client_send_receive“(在生成的代码中使用)绑定的数据将由服务客户端释放。

Answer 2

不幸的是，Axis2/C有 many memory leaks。

我们启动了axis2c-unofficial项目，以提供比原来更稳定的Axis2/C版本。

在该项目中有一个list of issues fixed。